Back up files [ Mirrored Disk/iX User's Guide ] MPE/iX 5.0 Documentation
Mirrored Disk/iX User's Guide
Back up files
1. All users of the volume set must be initially logged off before an
split-volume backup of that set can be performed.
Use the VSCLOSE command with the SPLIT option to split the volume
set into user volumes and backup volumes:
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| :TELL @ LOGOFF FOR BACKUP |
| :VSCLOSE PROD_SET; SPLIT |
| |
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2. Use the VSOPEN command to make the volume set available. Both
user volumes and backup volumes attempt to be mounted. If either
of them has been taken offline, the command only mounts the
available volume set half. After the volume set is placed
split-volume using the VSOPEN command, it is mounted.
3. Notify users that the volume set is available for use:
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| :VSOPEN PROD_SET |
| |
| PROD_SET SPLIT USER VOLUME MOUNTED ON LDEV 32 |
| (AVR 23) |
| |
| PROD_SET SPLIT BACKUP VOLUME MOUNTED ON LDEV 33 |
| (AVR 24) |
| |
| :TELL @ SYSTEM IS AVAILABLE NOW |
| |
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NOTE Once a volume set has been taken offline with a VSCLOSE
command, it can only be mounted with a VSOPEN command, not
by bringing it online.
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4. Use the STORE command with the SPLITVS parameter to back up the
volume set. The tape produced by a split volume STORE command is
fully compatible with that from a normal STORE command:
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| :FILE T; DEV=TAPE |
| :STORE @.@.@; *T; SPLITVS=PROD_SET; SHOW |
| . |
| . |
| |
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5. Invoke VOLUTIL.
6. Use the JOINMIRRSET command to join the user and backup halves of
a split volume set to make them mirrored again. After the volume
set is joined, a repair starts using the volumes that were
specified by the source parameter as the source volumes.
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| |
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| :VOLUTIL |
| |
| Mirvutil A.00.00, (C) Hewlett-Packard Co., 1990. |
| All Rights Reserved. |
| |
| volutil:JOINMIRRSET PROD_SET SOURCE=USER |
| |
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The SOURCE=USER option is specified so that users can continue
accessing the volume set while the join is initiated and the
repair takes place.
MPE/iX 5.0 Documentation